ViewSonic PJ503D-1 Service Manual page 16

PART III Inspection Criteria
IMAGE QUALITY SPECIFICATION
SEQ # TEST
1 Major Dark
Blemish
2 Major Light
Blemish
3 Reset
Boundary
Artifact
Eyecatchers
4
Border
Artifact
5 Projected
Images
Notes:
1. Projected blemish numbers include the count for the shadow of the artifact in addition to the
artifact itself, so that the count usually represents a single artifact on the window.
2. During all the above table tests, projected images shall be inspected in accordance with the
conditions of inspection specified in Appendix D's Section 3(DMD Image Quality).
3. The rejection basis for all cosmetic DMD defects (scratches, nicks, particles) will be the
projected image tests referenced in the above table.
4. Devices that meet this image quality specification but are deemed undesirable by the
customer may not be returned to T1 without prior approval by T1.
5. Screen＜Gray 10 shall not be used as a basis for rejecting a DMD for image quality.
ViewSonic Corporation
SCREEN
1.
Blue 60
≦
area
No blemish will be >1.5" long / diameter
2.
1.
Gray 10
≦
area
2. No blemish will be > 1.5" long / diameter
Gray 30 No rest boundary artifacts allowed
Any Screen
1. Eyecatcher and border artifacts are allowed
1.No adjacent pixels
1. Any screen
2.No bright pixels in Active Area
2. Gray 10
3.No unstable pixels in Active Area
3. Any screen
4.≦1 bright pixel in the POM
4. Gray 10
5.≦3 dark pixels in the Active Area
5. White
6.No DMD window aperture shadowing on the Active Area
6. Any screen
7.Minor blemishes are allowed
7. Any screen
ACCEPTANCE CRITERIA
4 visible dark blemishes are allowed in the active
4 visible light blemishes are allowed in the active
13
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PJ503D-1